Process of producing ornamental roofing



F. c. OVERBURY. PROCESS OF PRODUCING ORNAMENTAL ROOFING.

v APPLlCATiON FILED MAR. 6, 1917- Patented Nov. 29, 1921..

T. E F. H 4 3 T E E H S 2 any ]mwem%mr. Freer-lick 610V?! F. C.OVEBBURY.

PROCESS OF PRODUCING 0 RNAMENTAL RO OF ING.

- APPLICATION FILED MAR. a, 1911.

Patnted Nov 29, 1921.

2 SHEETSSHEET'2.

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fiarzwys or'mineral shingles or tiles.

. certain esthetic FREDERICK C. OVEBBURY, OF HILLSDALE, NEW JERSEY,ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE FLINTKOTE COMPANY, OF BOSTON,MASSACHUSETTS,

A CORPORATION OF MASSACHUSETTS.

EROCESS OF PRODUCING ORNAMENTAL ROOFING.

Application filed March 6,

To all whom it may concern:

Be it known that I, FREDERICK C. Oven- BURY, a citizen of the UnitedStates, residing at Hillsdale, in the county of Bergen andState of NewJersey, have invented new and useful Improvements in Processes ofProducing Ornamental Roofing, of which the following is a specification.

' This invention has relation to prepared roofing elements and moreparticularly to those which are designed to be separately ar rangedon-the roof in simulation of wooden Usually such elements are in theform of what are termed shingles or shingle strips, and they are more orless flexible, being cut from sheets of prepared weatherproof material.In order that such elements may be used on dwellings and high gradestructures, they have heretofore been ornamented, and incidentallyrendered more fire-proof, by the application to the surface thereof ofcrushed mineral such as slate, earthenwear tile, granite and the like,and 1ndeed such crushed minerals of differ cut-colors have been soplaced on the elongated sheets of roofing material to constituteconventional predetermined designs. Ordinarily, however, the shinglesand shingle strips have had the surface thereof coated with crushedmineral of one color or another so thatthe entire area of such elements,when placed on the roof, presents an unvarying color, shade or tint.lVhilethe provision of such shingles or shingle strips have greatlyenlarged the scope of their usefulness, nevertheless they have failed tomeet the demands of those who are insistent upon and ornamental effects.That is, notwithstanding that mineral coated roofing elements haveattained a certain vogue and have been used in large quantities on theroofs of dwellings, yet when laid they present a flat and unvarying andhence uninteresting monotonous appearance which is offensive to thosewho have artistictastes.

Natural building materials, such as wooden shingles, when exposed to theweather, even when stained, are so acted upon by the wind and weather,as to present different shades or-tints or colors in differentvunpredetermined areas, just as seam-faced granite because of its naturalformation presents to the eye beautiful varied color tones.

I have discovered that it is possible to Specification of LettersPatent.

Patented Nov. 29, 119211.

1917. Serial No. 152,492.

destroy the monotonous effect produced on the'eye by the mineral coatedelements when laid on the roof, by employing crushed minerals ofdifferent colors and shades, and so applying the same to the elements inthe process of manufacture, as to provide variable areas having onecolor and variable areas of other color with intervening areas where thecolors blend or shade from one to the other, these various areasconstituting no predetermined or related designs but occurring verymuchas they occur in seamfaced granite or other natural materials. Thisresultmay be accomplished by the employment, for example, of een and redcrushed slates, which are delivered to the sheet of adhesive-coatedfabric in such way I that portions or areas on the sheet are coated onlywith red slate, other. portions or areas with red slate, and theintervening portions or areas with a mixture of the twodifl'erently-colored materials.-

Upon the accompanying drawings, I have illustrated conventionally aformfilof apparatus which may be employed in manufac' turing roofingelements embodying the 1n vention and for practising the invention.

. Referring to said drawings,-

Figure 1 represents conventionally instrumentalities embodying one formof my improvements and which may be employed for the manufacture of myimproved shingle strips.

Figs. 2 and 3 represent the instrumentality for applying the differentlycolored crushed mineral materials. I

Fig. 4 represents an attempt to illustrate the sheet of material and toshow the areas of different colors thereon.

Fig. 5 represents a longitudinal section through a valve by which thecrushed mineral is fed to the machine shown in Figs. 2 and 3.

, Figs. 6 to 9 inclusive represent transverse sections through themultiple valve.

Fig. 10 represents a cross section showing the valve closed.

Fig. 11 illustrates the end of the valve mechanism.

Figs. 12 to 13 illustrate another form of valve mechanism which may beused.

It will of course be understood that the thro ugh or lessconventionally, and that the latter may be of any approved constructionor design. The instrumentality first in order of operation is anapparatus for saturating or impregnating a sheet of fibrous materialsuch asv felt or the like with the usual waterproofing composition of a.hydrocarbon 'or bituminous nature. This is indicated at A, and it maycomprise a suitably heated tank or vat 20 for containing said compound,which the sheet a is drawn from a roll compound from the now saturatedsheet prior to its passage to the next instrumentality.

The second apparatus is indicated at B, and it is an apparatus forapplying to one face of the saturated sheet a coatingof pitch or asphalthaving the desired consistency and melting point at ordinarytemperatures. This material is applied in a molten or plastic adhesivecondition and extends from edge to edge ofthe sheet. Between the two'i'nstrumentalities A and B may be arranged additional cooling rolls ifdesired- As shown the apparatus B has the cooling rolls 22, and therolls 23, 24, in connection with the latter of which there is thereceptacle 25 for the molten pitch or asphalt, which is spread on thesurface of the impregnated sheet.

The third instrumentality is indicated at C and applies the differentmineral materials to the sheet while the bituminous coating thereon isstill adhesive. The particular de-.

scription of this machine is given hereinafter.

The fourth instrumentality Dis the ma-' chine which cuts the sheet intothe roofing elements. {Any suitable machine may be used for th1s purposefor either longitudinally slitting the sheet and transversely severingit at intervals to form shingles of oblong or other shapes, or elsecutting it into shingle strips such as shown in Letters Patent No.1,150,298, dated August 17, 1915. For example, the machine shown issimilar to that shown and'described in my Letters Patent'No. 1,182,417,dated May 9, 1916, and includes the feeding rolls 26, the cutting rolls27, and the chopping knife 28 for forming the sheet a,'the shingle strip0 having the spacedtabs or projections d. In lieuof the machine thusconventionally illustrated, I may employ any other equivalent machinefor producing the detached roofing elements.

Between the third and fourth instrumentalities may be arranged afestooning and cooling mechanism of any suitable sort, although I havenot thought it necessary to illustrate the mechanism as it is wellknown.

Returning now to the surfacing machine (i, I have shown it as providedwith cooling fabric passes from the machine B, while the Squeeze rolls21 remove the surplus coating is still in an adhesive "condition.Arranged in operative: proximity. to the roll 30 is atrough 32 whichextends from end to end of the roll and to which-the differently'colored' surfacing minerals are delivered,

mineral material falling back to the trough as the sheet passes overroll 31 to the cooling rolls or drums 29. The difierentlycoloredsurfacing minerals are contained in separate 1 compartments orreceptacles and are delivered in batches to the trough. They may bemanually shoveled into'the trough in such way as to secure the desiredresult, but I have shown conventionally an automatic mechanism forfeeding them to the trough, which I shall now describe. A hopper 33 isdivided longitudinally by a partition 34 into two compartments 35, 36,of which the former may contain for example red crushed slate, and theother green crushed slate. These compartments conver e at their lower.ends to a valve casing 37 inwhich I have shown a multiple valve 38.This valvehas four passageways for the mineral material therethrough,two as at 40' and two as at 41, those at 4Qand '41 alternating. Theseare so arranged that, when the valve passages 40 communicate withcompartment 36, those at 41 communicate with compartment 35'- and viceversa. Thus at the same time two streams of red slate are beingdelivered to troughs difi'erent batches of colored-mineral,

or portions and there are strata of red in each batch with interveningstrata of green. Where these batches meet, the materials mingle or mixas will be well understood, as there '.is nothing to separate them.Hence, as the coated sheet passes the trouh, unconventional patches ofgreen an areas will be areas in. which the two colors red slate will beapplied respectively to difiere'nt portions or areas of the sheet,between which will be mixed or, blended without anyv lines ofdemarcation. Thus the sheet will :present a more or less mottledappearance as indicated conventionally in Fig. 4. 'The valve may beoperatedby hand, but,'if desired it mzziy be operated automatically.

en I may afiix to the valve a weighted arm. 43 connected by a rod 44 toa lever 45 oscillated by a cam-46. The latter may be driven l 1,3-M11147 and ulleys 48, 49, the latter bei .To t is neeaava :gTIOWII asdetachably hung on a pivot-50 on eighted arm 43, but, by lifting thelatch 51, the rod 44 may be disconnected therefrom, allowing the arm 43to drop to move the valve in position to cut off both streams of mineralto the trough, as indicated in'Fig. 10. When the rod is disconnected,the valve may be operated manually. The valve mechanism, which I haveillustrated and described, may be replaced by any mechanical equivalenttherefor, which will readily suggest itself. For example, in Figs. 12 to13 I have illustrated the two' large hoppers or receptacles 60, 61, fromwhich lead the s outs 62, 63, for the purpose of delivering thedifferently colored wit to the hopper 32. These spouts are contro led bysliding valves or ates 64, 65, whichmay be operated manual y orautomatically as desired.v Other forms of valve mechanism may beemployed,

r, as previously stated, the different batches of difi'erently coloredgrit may be shoveled bv hand into the hopper 32.

Having thus explained the nature of my said invention in roofingelements and de scribed a process and one set of instrumentalities forproducing the same, what I claim 1s: v

The herein described process of making mineral surfaced ornamentalroofing elements, which consists in passing a sheet of adhesive-coatedfibrous material lunder a mass of crushed mineral material, consistingof alternatin strata of differently colored material, each stratumconsisting of alternatingbodies of differently colored material, andcausing said differently, colored mineral materials to adhere inirregular areas of different colors with intervening areas having amixture of colors thereon, and then partially embedding said mineralmaterials by pressure into the adhesive coating of said sheet.

In testimony whereof I have aflixed my signature.

FREDERICK O. OVERBURY.

